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First differences of A138383.
0

%I #4 Oct 27 2020 14:50:51

%S 0,6,4,25,-13,37,-25,49,73,-98,146,-49,-73,97,121,36,-218,266,-109,

%T -133,314,-133,193,229,-350,-193,217,-205,229,1241,-1169,289,-530,

%U 1168,-1144,626,36,-301,361,36,-698,1504,-1480,397,-385,2069,144,-1708,-445,469

%N First differences of A138383.

%t Differences[Join[{3},(#[[2]]-#[[1]]) (Total[#]+1)/2&/@Partition[Prime[ Range[ 60]],2,1]]] (* _Harvey P. Dale_, Oct 27 2020 *)

%Y Cf. A138383.

%K easy,sign

%O 1,2

%A _Odimar Fabeny_, May 11 2008

%E More terms from _Harvey P. Dale_, Oct 27 2020